Ultrasonic liquid treatment chamber and continuous flow mixing system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-001/08
B05B-001/26
B05B-001/34
B01F-011/00
B01F-011/02
F16K-031/02
H01L-041/00
출원번호
UP-0530311
(2006-09-08)
등록번호
US-7703698
(2010-05-20)
발명자
/ 주소
Janssen, Robert Allen
Roffers, Steve
Ehlert, Thomas David
Ahles, John Glen
Rasmussen, Paul Warren
McNichols, Patrick Sean
McCraw, Jr., Earl C.
출원인 / 주소
Kimberly-Clark Worldwide, Inc.
대리인 / 주소
Armstrong Teasdale, LLP
인용정보
피인용 횟수 :
16인용 특허 :
102
초록▼
An ultrasonic liquid treatment chamber has an elongate housing through which liquid flows longitudinally from an inlet port to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency to ultrasonically energi
An ultrasonic liquid treatment chamber has an elongate housing through which liquid flows longitudinally from an inlet port to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency to ultrasonically energize liquid within the housing. An elongate ultrasonic horn of the waveguide assembly is disposed at least in part intermediate the inlet and outlet ports, and has a plurality of discrete agitating members in contact with and extending transversely outward from the horn intermediate the inlet and outlet ports in longitudinally spaced relationship with each other. The horn and agitating members are constructed and arranged for dynamic motion of the agitating members relative to the horn at the predetermined frequency and to operate in an ultrasonic cavitation mode of the agitating members corresponding to the predetermined frequency and the liquid being treated in the chamber.
대표청구항▼
What is claimed is: 1. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, the housing being generally closed at said ends and having an inlet port
What is claimed is: 1. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, the housing being generally closed at said ends and having an inlet port for receiving liquid into the interior space of the housing and an outlet port through which liquid is exhausted from the housing following ultrasonic treatment of the liquid, the inlet port being disposed at the lower end of the housing and the outlet port being spaced longitudinally from the inlet port such that liquid flows longitudinally upward within the interior space of the housing from the inlet port to the outlet port, and an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing and being operable at a predetermined ultrasonic frequency to ultrasonically energize liquid flowing within the housing, the waveguide assembly comprising an elongate ultrasonic horn disposed at least in part intermediate the inlet port and the outlet port of the housing and having an outer surface located for contact with liquid flowing within the housing from the inlet port to the outlet port, and a plurality of discrete agitating members in contact with and extending transversely outward from the outer surface of the horn intermediate the inlet port and the outlet port in longitudinally spaced relationship with each other, the agitating members and the horn being constructed and arranged for dynamic motion of the agitating members relative to the horn upon ultrasonic vibration of the horn at said predetermined frequency and to operate in an ultrasonic cavitation mode of the agitating members corresponding to the predetermined frequency and the liquid being treated in the chamber, and wherein the horn has a terminal end within the interior space of the housing and substantially spaced longitudinally from the outlet port to define a buffer zone therebetween within the interior space of the housing, the ratio of the buffer zone void volume to the void volume of the remainder of the interior space of the housing upstream from the terminal end of the waveguide being about 1:1. 2. The ultrasonic treatment chamber set forth in claim 1 wherein the predetermined frequency is in the range of about 20 kHz to about 40 kHz. 3. The ultrasonic treatment chamber set forth in claim 1 wherein the agitating members and the horn are constructed and arranged to amplify the displacement of at least one of the agitating members relative to the displacement of the horn upon ultrasonic vibration of the horn at said predetermined frequency. 4. The ultrasonic treatment chamber set forth in claim 1 wherein the horn and agitating members together define a horn assembly of the waveguide assembly, the horn assembly being disposed entirely within the interior space of the housing. 5. The ultrasonic treatment chamber set forth in claim 1 wherein the horn has a terminal end within the interior space of the housing upstream of the outlet port thereof, one of said agitating members being disposed one of longitudinally at and longitudinally adjacent the terminal end of the horn. 6. The ultrasonic treatment chamber set forth in claim 1 further comprising a mounting member for mounting the waveguide assembly on the housing generally at one of said longitudinal ends thereof, the mounting member being constructed to substantially vibrationally isolate the housing from the waveguide assembly. 7. The ultrasonic treatment chamber set forth in claim 6 wherein the mounting member at least in part closes said one of the longitudinal ends of the housing. 8. The ultrasonic treatment chamber set forth in claim 6 wherein the mounting member is formed integrally with the waveguide assembly. 9. The ultrasonic treatment chamber set forth in claim 1 wherein the horn has a length of approximately one-half wavelength. 10. The ultrasonic treatment chamber set forth in claim 1 further comprising a baffle assembly disposed within the interior space of the housing and extending at least in part transversely inward from the housing toward the horn to direct longitudinally flowing liquid in the housing to flow transversely inward into contact with the agitating members of the waveguide assembly. 11. The ultrasonic treatment chamber set forth in claim 1 wherein at least one of the agitating members extends continuously about the circumference of the horn. 12. The ultrasonic treatment chamber set forth in claim 1 wherein each of the agitating members extends continuously about the circumference of the horn. 13. The ultrasonic treatment chamber set forth in claim 1 wherein each of the agitating members has a transverse length that the agitating member extends transversely outward from the outer surface of the horn, and a thickness, a ratio of the agitating member length to agitating member thickness being in the range of about 2:1 to about 6:1. 14. The ultrasonic treatment chamber set forth in claim 1 in combination with a mixing system for forming a liquid ink solution, the mixing system comprising a delivery system operable to deliver at least two ink components, at least one of which is a liquid, to the interior space of the housing of the ultrasonic treatment chamber, the ultrasonic treatment chamber being operable to mix the at least two ink components to form a liquid ink solution, and a post-processing system for processing the ink solution following exiting of the liquid ink solution from the treatment chamber via the outlet port thereof. 15. The ultrasonic treatment chamber set forth in claim 14 wherein the post-processing system comprises a degassing and bubble removal unit to remove gas bubbles from the liquid ink solution after the liquid ink solution exits the treatment chamber. 16. The ultrasonic treatment chamber set forth in claim 1 wherein the inlet port is oriented generally tangentially relative to the housing to induce a swirling action to liquid delivered into the interior space of the housing at the inlet port. 17. The ultrasonic treatment chamber set forth in claim 16 wherein the inlet port is a first inlet port, the ultrasonic treatment chamber further comprising a second inlet port oriented generally tangentially relative to the housing in parallel, spaced relationship with the first inlet port. 18. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, the housing being generally closed at said ends and having an inlet port for receiving liquid into the interior space of the housing and an outlet port through which liquid is exhausted from the housing following ultrasonic treatment of the liquid, the inlet port being disposed at the lower end of the housing and the outlet port being spaced longitudinally from the inlet port such that liquid flows longitudinally upward within the interior space of the housing from the inlet port to the outlet port, and an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing and being operable at a predetermined ultrasonic frequency to ultrasonically energize liquid flowing within the housing, the waveguide assembly comprising an elongate ultrasonic horn disposed at least in part intermediate the inlet port and the outlet port of the housing and having an outer surface located for contact with liquid flowing within the housing from the inlet port to the outlet port, the horn being constructed for both longitudinal displacement and radial displacement in response to ultrasonic vibration of the horn at the predetermined ultrasonic frequency, and an agitating member in contact with and extending transversely outward from the outer surface of the horn intermediate the inlet port and the outlet port, the agitating member comprising a transverse component extending generally transversely outward from the outer surface of the horn and a longitudinal component connected to said transverse component in transversely spaced relationship with the outer surface of the horn and extending in a direction that is different from that of the transverse component and is at least in part other than transverse to the outer surface of the horn. 19. The ultrasonic treatment chamber set forth in claim 18 wherein the horn has a nodal region at which transverse displacement of the horn is generally maximized and longitudinal displacement of the horn is generally minimized upon vibration of the horn at the predetermined frequency, the agitating member being longitudinally disposed one of at and adjacent the nodal region of the horn. 20. The ultrasonic treatment chamber set forth in claim 18 wherein the longitudinal component of the agitating member extends generally parallel to the horn outer surface. 21. The ultrasonic treatment chamber set forth in claim 20 wherein the agitating member is generally T-shaped in cross-section. 22. The ultrasonic treatment chamber set forth in claim 18 wherein the transverse component of the agitating member extends continuously about the circumference of the horn outer surface. 23. The ultrasonic treatment chamber set forth in claim 22 wherein the longitudinal component of the agitating member extends continuously about the horn outer surface. 24. The ultrasonic treatment chamber set forth in claim 18 wherein the longitudinal component and the transverse component of the agitating member are formed integrally. 25. The ultrasonic treatment chamber set forth in claim 24 wherein the agitating member is formed integrally with the horn. 26. The ultrasonic treatment chamber set forth in claim 18 wherein the agitating member comprises a first agitating member, the waveguide assembly further comprising a plurality of additional agitating members extending transversely outward from the outer surface of the horn, said plurality of additional agitating members being spaced longitudinally from each other and from the first agitating member. 27. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, an inlet port being disposed at the lower end of the housing for receiving liquid into the interior space of the housing and an outlet port through which liquid is exhausted from the housing following ultrasonic treatment of the liquid, the outlet port being spaced longitudinally from the inlet port such that liquid flows longitudinally upward within the interior space of the housing from the inlet port to the outlet port, and an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing and being operable at a predetermined ultrasonic frequency to ultrasonically energize liquid flowing within the housing, the waveguide assembly comprising an elongate ultrasonic horn disposed at least in part intermediate the inlet port and the outlet port of the housing and having an outer surface located for contact with liquid flowing within the housing from the inlet port to the outlet port, and a plurality of discrete agitating members in contact with and extending transversely outward from the outer surface of the horn in longitudinally spaced relationship with each other intermediate the inlet port and the outlet port, the agitating members and the horn being constructed and arranged for dynamic motion of the agitating members relative to the horn upon ultrasonic vibration of the horn at said predetermined frequency, the agitating members each being annular and extending continuously about the circumference of the horn, the agitating members being oriented transversely of the longitudinal flow of the liquid within the housing. 28. The ultrasonic treatment chamber set forth in claim 27 wherein the predetermined frequency is in the range of about 20 kHz to about 40 kHz. 29. The ultrasonic treatment chamber set forth in claim 27 wherein the agitating members and the horn are constructed and arranged to amplify the displacement of at least one of the agitating members relative to the displacement of the horn upon ultrasonic vibration of the horn at said predetermined frequency. 30. The ultrasonic treatment chamber set forth in claim 27 wherein the horn has a terminal end within the interior space of the housing and substantially spaced longitudinally from the outlet port to define a buffer zone therebetween within the interior space of the housing. 31. The ultrasonic treatment chamber set forth in claim 27 further comprising a mounting member for mounting the waveguide assembly on the housing generally at one of said longitudinal ends thereof, the mounting member being constructed to substantially vibrationally isolate the housing from the waveguide assembly. 32. The ultrasonic treatment chamber set forth in claim 31 wherein the mounting member is formed integrally with the waveguide assembly. 33. The ultrasonic treatment chamber set forth in claim 27 wherein the horn has a length of approximately one-half wavelength. 34. The ultrasonic treatment chamber set forth in claim 27 further comprising a baffle assembly disposed within the interior space of the housing and extending at least in part transversely inward from the housing toward the horn to direct longitudinally flowing liquid in the housing to flow transversely inward into contact with the agitating members of the waveguide assembly. 35. The ultrasonic treatment chamber set forth in claim 27 wherein each of the agitating members has a transverse length that the agitating member extends transversely outward from the outer surface of the horn, and a thickness, a ratio of the agitating member length to agitating member thickness being in the range of about 2:1 to about 6:1. 36. The ultrasonic treatment chamber set forth in claim 27 in combination with a mixing system for forming a liquid ink solution, the mixing system comprising a delivery system operable to deliver at least two ink components, at least one of which is a liquid, to the interior space of the housing of the ultrasonic treatment chamber, the ultrasonic treatment chamber being operable to mix the at least two ink components to form a liquid ink solution, and a post-processing system for processing the ink solution following exiting of the liquid ink solution from the treatment chamber via the outlet port thereof. 37. The ultrasonic treatment chamber set forth in claim 27 wherein the post-processing system comprises a degassing and bubble removal unit to remove gas bubbles from the liquid ink solution after the liquid ink solution exits the treatment chamber. 38. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, an inlet port being disposed at the lower end of the housing for receiving liquid into the interior space of the housing and an outlet port through which liquid is exhausted from the housing following ultrasonic treatment of the liquid, the outlet port being spaced longitudinally from the inlet port such that liquid flows longitudinally upward within the interior space of the housing from the inlet port to the outlet port, and an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing and being operable at a predetermined ultrasonic frequency to ultrasonically energize liquid flowing within the housing, the waveguide assembly comprising an elongate ultrasonic horn having a terminal end spaced longitudinally from the outlet port and an outer surface located for contact with liquid flowing within the housing from the inlet port to the outlet port, and a plurality of discrete agitating members in contact with and extending transversely outward from the outer surface of the horn in longitudinally spaced relationship with each other intermediate the inlet port and the outlet port, one of said agitating members being longitudinally located one of at and adjacent to the terminal end of the horn in longitudinally spaced relationship with the outlet port, the agitating members each being annular and extending continuously about the circumference of the horn, the agitating members being oriented transversely of the longitudinal flow of the liquid within the housing. 39. The ultrasonic treatment chamber set forth in claim 38 wherein the terminal end of the horn is substantially spaced longitudinally from the outlet port to define a buffer zone therebetween within the interior space of the housing. 40. The ultrasonic treatment chamber set forth in claim 38 wherein the said one of the agitating members and the horn are constructed and arranged to amplify the displacement of said one of the agitating members relative to the displacement of the horn upon ultrasonic vibration of the horn at said predetermined frequency. 41. The ultrasonic treatment chamber set forth in claim 40 wherein each of the agitating members and the horn are constructed and arranged to amplify the displacement of the agitating members relative to the displacement of the horn upon ultrasonic vibration of the horn at said predetermined frequency. 42. The ultrasonic treatment chamber set forth in claim 38 further comprising a mounting member for mounting the waveguide assembly on the housing generally at one of said longitudinal ends thereof, the mounting member being constructed to substantially vibrationally isolate the housing from the waveguide assembly. 43. The ultrasonic treatment chamber set forth in claim 42 wherein the mounting member is formed integrally with the waveguide assembly. 44. The ultrasonic treatment chamber set forth in claim 38 wherein the horn has a length of approximately one-half wavelength. 45. The ultrasonic treatment chamber set forth in claim 38 further comprising a baffle assembly disposed within the interior space of the housing and extending at least in part transversely inward from the housing toward the horn to direct longitudinally flowing liquid in the housing to flow transversely inward into contact with the agitating members of the waveguide assembly. 46. The ultrasonic treatment chamber set forth in claim 38 wherein at least one of the agitating members extends continuously about the circumference of the horn. 47. The ultrasonic treatment chamber set forth in claim 38 wherein each of the agitating members extends continuously about the circumference of the horn. 48. The ultrasonic treatment chamber set forth in claim 38 in combination with a mixing system for forming a liquid ink solution, the mixing system comprising a delivery system operable to deliver at least two ink components, at least one of which is a liquid, to the interior space of the housing of the ultrasonic treatment chamber, the ultrasonic treatment chamber being operable to mix the at least two ink components to form a liquid ink solution, and a post-processing system for processing the ink solution following exiting of the liquid ink solution from the treatment chamber via the outlet port thereof. 49. The ultrasonic treatment chamber set forth in claim 48 wherein the post-processing system comprises a degassing and bubble removal unit to remove gas bubbles from the liquid ink solution after the liquid ink solution exits the treatment chamber. 50. An ultrasonic treatment chamber for ultrasonically treating a liquid, said treatment chamber comprising: an elongate housing having an upper end, a longitudinally spaced lower end and an interior space, an inlet port being disposed at the lower end of the housing for receiving liquid into the interior space of the housing and an outlet port through which liquid is exhausted from the housing following ultrasonic treatment of the liquid, the outlet port being spaced longitudinally from the inlet port such that liquid flows longitudinally upward within the interior space of the housing from the inlet port to the outlet port, an elongate ultrasonic waveguide assembly extending longitudinally within the interior space of the housing and being operable at a predetermined ultrasonic frequency to ultrasonically energize liquid flowing within the housing, the waveguide assembly comprising an elongate ultrasonic horn having an outer surface located for contact with liquid flowing within the housing from the inlet port to the outlet port, and a plurality of discrete agitating members in contact with and extending transversely outward from the outer surface of the horn in longitudinally spaced relationship with each other intermediate the inlet port and the outlet port, and a baffle assembly comprising a plurality of discrete baffle members extending generally transversely inward from the housing toward the horn within the interior space of the housing, the baffle members being in generally longitudinally spaced relationship with each other and longitudinally intersticed with the agitating members of the waveguide assembly, wherein each of the baffle members is arcuate and extends generally circumferentially along a respective portion of the housing, the longitudinal position of each baffle member varying relative to the housing as the baffle member extends circumferentially along said respective portion of the housing. 51. The ultrasonic treatment chamber set forth in claim 50 wherein the baffle members are each annular. 52. The ultrasonic treatment chamber set forth in claim 51 wherein each of the baffle members is shaped generally as a flat washer. 53. The ultrasonic treatment chamber set forth in claim 51 wherein each of the baffle members has a non-uniform thickness. 54. The ultrasonic treatment chamber set forth in claim 53 wherein each baffle member has a first surface and an opposite second surface, at least one of the first and second surfaces extending in part longitudinally toward the outlet port of the housing as the baffle member extends transversely inward away from the housing. 55. The ultrasonic treatment chamber set forth in claim 50 wherein each of the agitating members extends continuously about the circumference of the horn.
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